Head-Up Display Panel Cooling With Segmented Thermal Sheet
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing head-up displays suffer from insufficient heat dissipation in the display panel due to sunlight focusing, leading to potential damage.
Innovation Solution
A display device comprising a thermal conductive sheet sandwiched between a display panel and a light transmissive material, allowing heat generated in the panel to be efficiently conducted and dissipated through the sheet and material.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a transparent member is brought into contact with the display panel to conduct heat, then heat dissipation is improved, but the display area may be blocked or light transmission may be affected
Solution Approach 1:
The transparent member is divided into a light transmissive region (allowing light passage) and a heat conduction region (for thermal dissipation). This segmentation allows the member to simultaneously perform both light transmission and heat conduction functions without interfering with each other, resolving the contradiction between improving heat dissipation and maintaining light transmission.
Solution Approach 2:
Different regions of the transparent member are assigned different functions: the light transmissive region maintains high transparency for display visibility, while the heat conduction region is optimized for thermal contact with the display panel. This local differentiation of properties allows simultaneous optimization of both light transmission and heat dissipation performance.
2Temperature
If the transparent member contacts the display panel for heat conduction, then thermal management is improved, but manufacturing complexity increases
Solution Approach 1:
The transparent member is designed to serve multiple functions simultaneously: it acts as both a light transmissive window and a heat conduction path. By integrating these functions into a single component rather than using separate elements, the overall device complexity is reduced while achieving effective thermal management.
Solution Approach 2:
The light transmissive function and heat conduction function are merged into a single transparent member structure. This consolidation eliminates the need for separate components and interfaces, simplifying the overall device architecture while maintaining effective heat dissipation from the display panel.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Effectively prevents damage to the display panel by ensuring efficient heat dissipation, maintaining its operational integrity under sunlight exposure.
Implementation Method 1
a thermal conductive sheet that is disposed contacting the display panel, and has an opening positionally corresponding with the display area
Data Source
AI summary
A display device includes: a display panel that includes, in a front surface, a display area in which an image is displayed, and projects, from the display area, light that has entered from a back surface as display light showing the image; a thermal conductive sheet that is disposed contacting the display panel, and has an opening positionally corresponding with the display area; and a light transmissive material that sandwiches the thermal conductive sheet together with the display panel.